MAX1722EZK+T

MAXIM INTEGRATED PRODUCTS  MAX1722EZK+T  直流/直流开关升压逐步递增稳压器, 可调, 800mV-5.5V输入, 2V-5.5V/150mA输出, TSOT-5

The is a 1.5µA IQ, step-up DC-DC converter in 5 pin TSOT package. This compact, high efficiency, step-up DC-DC converter features an extremely low 1.5µA quiescent supply current to ensure highest possible light load efficiency. Device is optimized for operation from one to two alkaline or nickel-metal-hydride NiMH cells or a single Li+ cell. It is ideal for applications where extremely low quiescent current and ultra-small size is critical. Built-in synchronous rectification significantly improves efficiency and reduces size and cost by eliminating need for an external schottky diode. It features 0.5ohm N-channel power switch and proprietary noise-reduction circuitry which suppresses electromagnetic interference EMI caused by inductor in many step-up applications. It is used in pagers, remote controls, remote wireless transmitters, digital still cameras, single-cell battery powered devices, MP3 players and personal digital assistants.

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Supply voltage range is 0.8V to 5.5V

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Operating temperature range from -40°C to 85°C

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Up to 90% efficiency

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Logic controlled shutdown is 0.1µA

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Output voltage accuracy is ±1%

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Adjustable output voltage

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Up to 150mA output current

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Startup voltage of 0.91V

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Internal EMI suppression